
Surf Forecasts:
Kohala Lighthouse surf forecast from 21 Jul 2026:
- Most powerful swell: Monday 27 Jul, 11AM (local time) - 7ft (2.2m), 14s period, E swell with 1,984 kJ wave energy.
Best Forecast Surf Conditions for Kohala Lighthouse this week:
The most powerful waves expected at Kohala Lighthouse in the next 16 days are 2.2m 14s and forecast to arrive on Monday (Jul 27) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 17s period and expected on Thursday (Jul 23) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Mon 27th Jul) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Kohala Lighthouse over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you. We’ve got a 16-day window on the table, but honestly, it’s a tough one for the North Kohala region. The big picture is a long stretch of cross-shore winds and less-than-ideal conditions, with a couple of late-period glimmers that might get your hopes up if you’re an experienced local.
The only spot on the radar is Kohala Lighthouse. This is an advanced reef break, and it’s consistent, but it’s exposed to the swell. The water temperature is sitting at 80°F, which is pretty much normal for this time of year, so no surprises there.
The first week is a write-off. From Monday, July 20th through to the end of July, we’ve got a constant stream of cross-shore winds, mostly from the ENE at 15 to 22 mph. The swell is on the small side, mostly around 5 ft to 7 ft, but the period is short, between 5 and 8 seconds. The combined swell energy is weak to moderate, with the highest reading around 537 on July 25th morning. But the wind is just ruining it. The wave comment is consistently “poor surf conditions.” It’s lumpy, cross-chop, and not worth paddling out for. Basically, this is a kite surfer’s setup, not a paddle surfer’s.
There’s a slight tease on the afternoon of Saturday, July 25th. The swell drops to 3 ft, but the period jumps to 17 seconds. That’s a very long period groundswell, and the energy jumps to 959. Still, the wind is a fresh cross-shore at 19 mph, so it’s still messy. For a reef like Kohala Lighthouse, a long period swell like that can be great, but only if it’s clean. It’s not.
The real standouts, if you can call them that, appear in the second week. On Sunday, July 26th, the swell builds to 6 ft to 6 ft from the E with a 16-second period. The combined energy hits 1841. That’s strong energy. But here’s the killer: the wind is cross-onshore. The wave comment is still “poor surf conditions.” It’s a shame, because the potential is there.
Finally, from Monday, July 27th to Wednesday, July 29th, we see the biggest swell of the outlook. Swell heights are 7 ft to 8 ft from the ENE and NE, with a period of 12 to 14 seconds. That’s solid, powerful groundswell. The energy readings are massive: 2142 on Monday morning, 2190 on Tuesday afternoon. This is expert-only territory, over 8 ft at times. But again, the wind is cross-onshore or cross-shore. The wave comments improve marginally to “marginal surf forecast or questionable tide conditions.” It’s still not clean, but for a seasoned surfer who knows the reef, it might be the only window worth checking. The 8 ft on Wednesday morning with a 12-second period and cross-shore wind is the best of a bad bunch.
After that, from July 30th onwards, the swell drops off rapidly. By August 4th, we’re down to 2 ft with a 12-second period, and the energy is weak. The wind is still cross-shore. It’s a real downer.
So, the only true standout in this entire 16-day run is the period from Monday, July 27th to Wednesday, July 29th. The swell is big and powerful, but it’s not clean. If you’re an expert willing to deal with challenging conditions, that’s your window. For everyone else, it’s a long wait.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 24°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Thu night). Mainly fresh winds. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 11 | ENE 5 | ENE 12 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | NE 8 | E 17 | E 16 | E 16 | E 16 | E 15 |
Wave Graph | ||||||||||||||||||||
256 | 162 | 206 | 289 | 178 | 524 | 172 | 718 | 253 | 309 | 255 | 251 | 359 | 294 | 291 | 560 | 1334 | 1451 | 1591 | 1618 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on |
High Tide | 6:40PM0.56m | 10:20AM0.62m | 6:03PM0.49m | 11:38AM0.67m | 12:31PM0.73m | 1:13PM0.77m | 11:30PM0.35m | 1:48PM0.81m | 00:37AM0.36m | 2:20PM0.85m | 1:22AM0.38m | |||||||||
Low Tide | 2:12AM0.18m | 5:11PM0.49m | 2:56AM0.18m | 3:51AM0.18m | 4:51AM0.16m | 9:15PM0.34m | 5:47AM0.14m | 9:19PM0.31m | 6:34AM0.11m | 9:34PM0.29m | ||||||||||
— | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | |
7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 24 |
Feels °C | 25 | 24 | 25 | 24 | 24 | 22 | 22 | 23 | 22 | 23 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | W 11 | E 12 | E 11 | E 13 | E 12 | SW 16 | SW 17 | SW 17 | N 10 | NNW 10 | SSW 18 | E 17 | E 16 | E 16 | E 14 | E 17 | E 16 | E 16 | E 16 | E 15 |
10 | 25 | 39 | 56 | 136 | 9 | 12 | 12 | 9 | 10 | 30 | 52 | 80 | 121 | 148 | 560 | 1334 | 1451 | 1591 | 1618 | |
Swell 2 Height (m) Direction Period (s) | E 13 | E 16 | E 15 | SW 16 | SW 15 | W 10 | N 12 | N 11 | SW 16 | SW 16 | NNW 10 | N 9 | N 9 | ENE 9 | E 18 | E 13 | NE 8 | SW 15 | NE 8 | NE 8 |
13 | 19 | 38 | 10 | 9 | 2 | 3 | 2 | 10 | 10 | 9 | 6 | 6 | 17 | 98 | 53 | 260 | 9 | 250 | 200 | |
Swell 3 Height (m) Direction Period (s) | SW 18 | W 12 | W 11 | W 11 | W 11 | N 12 | SW 22 | S 22 | SW 20 | S 20 | E 18 | SW 15 | SW 16 | E 13 | SW 16 | SW 14 | SW 14 | — | — | — |
12 | 10 | 9 | 2 | 2 | 3 | 20 | 9 | 15 | 7 | 6 | 8 | 10 | 14 | 10 | 8 | 8 | — | — | — | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 11 | ENE 5 | ENE 12 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | NE 8 | NE 8 | E 8 | NE 8 | — | — |
256 | 162 | 206 | 289 | 178 | 524 | 172 | 718 | 253 | 309 | 255 | 251 | 359 | 294 | 291 | 346 | 71 | 337 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 73 | 69 | 71 | 76 | 25 | 25 | 73 | 73 | 73 | 81 | 69 | 73 | 76 | 57 | 73 | 73 | 73 | 69 | 57 | 69 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Kohala Lighthouse Surf forecast
The above surf forecast table for Kohala Lighthouse provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kohala Lighthouse can be found by selecting the local surf guide option on the grey menu. Our Kohala Lighthouse surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kohala Lighthouse) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kohala Lighthouse may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kohala Lighthouse is 87 km (54 miles) from Kihei. If you plan a vacation in Big Island, look for hotels and other accommodation in Kihei. Kihei has rooms for a wide range of budgets as well as car hire and transport links.










